Hi, I have an app which integrates several platforms with Intervals.
Today I added Strava integration, you can copy your activities from Strava to Intervals.
It exports original file from Strava and uploads it to Intervals.
Version to download Release v0.8.0 · freekode/tp2intervals · GitHub
GitHub page GitHub - freekode/tp2intervals: Tool to sync between TrainingPeaks, TrainerRoad and Intervals.icu
This is standalone app (for mac, win, linux, also there is docker and jar), for authorization with Strava you just need to put cookie from Strava on Configuration page.
More information you can find here Tp2intervals - Copy TrainingPeaks and TrainerRoad workouts\plans to Intervals
If you have any problems you can reach me here, on forum, or via GitHub, or email.